快乐的英语是happy，英 [ˈhæpɪ] 美 [ˈhæpi] adj. 快乐的。例句：How lucky I am to work with you! Happy Valentine’s Day. Boyhood is a happy time of life.
Hookins made a speech couched in a happy vein.
Your attempts at sarcasm are not very happy.
I’ll be happy with any job i ‘m assigned to do.
She goes through life in a happy go lucky fashion .
People would have flashes of happy expression.
I was much happier in my old job.
Goldetein was feeling rather happy now.
I made no doubt of her being extremely happy.
You must try to strike a happy medium.
They are happy , nor need we worry.
Now the old man is living a happy life.
He will be a happy fellow who gets her!
Well, a girl can be happy anywhere.
Men and women are happy when they love.
He is as happy as can be.
For all his wealth, he was not happy.
Your wandering girl is fine and happy.
Many happy return of this auspicious day to you.
Planck was not very happy about this idea.
Boyhood is a happy time of life.